certainty of origin : Donated directly by the Author.
author(s) : Sandberger
date of publication : 1869
source : Jahrb.Min.p.313
formula : gersdorffite+ullmannite
comments about the origin : coll.Adam No3969 obtenu par Sandberger 1972
catalog number(s) : 8498
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP